Eucalyptus globulus (Labill.): a perfume tree with several medicinal purposes

Abstract

Eucalyptus globulus (Labill.) [Myrtaceae] est originaire de Tasmanie en Australie et pousse surtout dans les régions chaudes. L'eucalyptus commun ou gommier bleu est un arbre sempervirent qui peut croître jusqu'à 30-55 m de haut. Ses feuilles sont la principale source de son huile essentielle (HE). Utilisée pour ses vertus médicinales, notamment antitussives et expectorantes, elle n'en a pas moins des propriétés fébrifuges, toniques, astringentes, antiseptiques, hémostatiques et vermifuges. Parmi ces composés, le 1,8-cinéole ou eucalyptol (50 à 80 %) est sans doute le plus connu, car c'est un expectorant qui peut soulager la toux et lutter contre les problèmes des voies respiratoires. En outre, pinène, limonène et au moins 250 autres composés dont citronellal, cryptone, pipéritone viendront étoffer la liste des nombreux composés aux vertus médicinales de l'eucalyptus. En phytoaromathérapie, l'essence d'eucalyptus officinal pourra trouver une place comme désinfectant atmosphérique en milieu hospitalier afin de lutter contre les infections nosocomiales et les contaminations aéroportées. Elle aide aussi à lutter contre l'asthme et peut être utilisée pour la désinfection de plaies. Notre travail se veut une revue de la littérature des propriétés thérapeutiques, préventive et/ou curative, de cet arbre à parfum et les potentiels utilisations de son HE en phytoaromathérapie anti-infectieuse ou encore comme ingrédient actif dans les préparations pharmaceutiques. Mots clés Eucalyptus globulus (Labill.) · Huile essentielle · Eucalyptol · Aromathérapie · Infections respiratoiresAbstract Eucalyptus globulus (Labill.) [Myrtaceae] is native of Tasmania (Australia) and grows mainly in warm regions. The common blue gum eucalyptus is an evergreen tree that can grow up to 30-55 m high. Its leaves are the main source of essential oil (EO), which has been used for medicinal purposes, including antimicrobial and expectorant properties. Further, Eucalyptus globulus EO has many other medicinal properties, such as antipyretic, tonic, astringent, antiseptic, and hemostatic. The chemical composition of EO revealed that the oxygenated monoterpène 1,8-cineol or eucalyptol (50-80%) is the best known probably because it is an expectorant, can relieve cough, and fight against respiratory tract infections. Hence, pinene, limonene, and other compounds (citronellal, cryptone, and piperitone) will expand the list of many compounds with medicinal properties of eucalyptus EO. In phytotherapy research, Eucalyptus globulus EO could be used as an air disinfectant in hospitals to fight against nosocomial infections and airborne contaminations. Our article aims to be a literature review of the therapeutic (preventive or curative) properties of Eucalyptus globulus and gives a strong impetus of the potential uses of EO in aromatherapy or as an active ingredient in pharmaceutical industry.

Biological activities and chemical characterization of Lavandula angustifolia essential oil from Seraïdi, Northeastern Algeria

“…A previous study by Boughendjioua (2017) showed that the yield of lavender EO from Skikda (East Algeria) was 1.5%, while the yield of lavender essential oil from Zagreb in central Croatia was 0.9% (Blažeković et al (2018). Variation in EO yields could be attributed to various factors, including environment, agronomy, age, genotype, and climate (Bey-Ould Si Said et al 2016;Boukhatem et al 2017), as well as harvest period, extraction method and conditions, and recovery percentages (Bagheri et al 2014), lavender flower maturity and interaction with the environment.…”

“…It multiplies the possibilities of use from one region to another. The variability depends on pedoclimatic factors, but harvest periods, duration of sunshine, rainfall, altitude, and the nature of the soil influence the chromatographic profile of EOs (Boukhatem et al 2017). In this context, this study aims to characterize the EO of Lavandula officinale (Lavandula angustifolia) harvested in the Seraïdi region (Northeastern Algeria) and to evaluate its antifungal, antibacterial and antioxidant activities to confirm its applications as a fungicide and bactericide, to reduce the harmful effects the traditional pesticide but also its use as an antioxidant agent to replace the chemical antioxidants used in the food industry.…”

Etude Bibliographique sur la Phytochimie et les Activités Biologiques de Eucalyptus globulus L. (Myrtaceae)

“…Ses feuilles sont la principale source de son huile essentielle. Utilisée pour ses vertuesmedecinales, notamment antitussive et expectorantes, elle n'en a pas moins des proprietés fébrifuges, toniques, astringentes, antiseptiques, antimicrobiennes, hémostatiques et vermifuges (Boukhatem et al, 2019;Salehi et al, 2019).…”

Atividade antimicrobiana de óleos essenciais frente a bactérias patogênicas de importância clínica

“…Também tem propriedades antifúngicas, analgésicas e antiinflamatórias (Pombo et al, 2018). Ademais, destaca-se também, o óleo essencial do Eucalipto globulus no tratamento de infecções respiratórias (Boukhatem et al, 2017). Além disso, apresentam-se como agente antimicrobiano (Abirami et al, 2017, Monteiro et al, 2021.…”